Premium
Carbon‐13 NMR studies of benzoquinones
Author(s) -
JosephNathan P.,
AbramoBruno D.,
Ortega D. A.
Publication year - 1981
Publication title -
organic magnetic resonance
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0030-4921
DOI - 10.1002/mrc.1270150321
Subject(s) - tautomer , ring (chemistry) , chemistry , carbon fibers , thymoquinone , quinone , computational chemistry , carbon 13 nmr , substitution (logic) , stereochemistry , organic chemistry , materials science , composite number , computer science , programming language , composite material , antioxidant
The assignment of all ring carbons of p ‐benzoquinones derived from perezone and from thymoquinone was completed using gated decoupled spectra. The long range proton‐carbon couplings are discussed in terms of the degree of substitution of the quinone ring. The tautomeric interconversion of the two energetically equivalent forms of 2,5‐dihydroxy‐1,4‐benzoquinones has been studied in various solvents and at several temperatures.